﻿using System;
using System.Diagnostics;
using System.Globalization;
using System.Runtime.InteropServices;
using System.ComponentModel.Design;
using Microsoft.Win32;
using System.Linq;
using Microsoft.VisualStudio;
using Microsoft.VisualStudio.Shell.Interop;
using Microsoft.VisualStudio.OLE.Interop;
using Microsoft.VisualStudio.Shell;
using System.IO;

namespace oshvartz.DebugVisulaizerVSPackage
{
    /// <summary>
    /// This is the class that implements the package exposed by this assembly.
    ///
    /// The minimum requirement for a class to be considered a valid package for Visual Studio
    /// is to implement the IVsPackage interface and register itself with the shell.
    /// This package uses the helper classes defined inside the Managed Package Framework (MPF)
    /// to do it: it derives from the Package class that provides the implementation of the 
    /// IVsPackage interface and uses the registration attributes defined in the framework to 
    /// register itself and its components with the shell.
    /// </summary>
    // This attribute tells the PkgDef creation utility (CreatePkgDef.exe) that this class is
    // a package.
    [PackageRegistration(UseManagedResourcesOnly = true)]
    // This attribute is used to register the information needed to show this package
    // in the Help/About dialog of Visual Studio.
    [InstalledProductRegistration("#110", "#112", "1.0", IconResourceID = 400)]
    // This attribute is needed to let the shell know that this package exposes some menus.
    [ProvideMenuResource("Menus.ctmenu", 1)]
    [Guid(GuidList.guidDebugVisulaizerVSPackagePkgString)]
    public sealed class VsPackage : Package
    {
        private static readonly string[] _visulaizerFiles = {"GraphSharp.dll",
                                                                "GraphSharp.Controls.dll",
                                                                "QuickGraph.dll",
                                                                "RibbonControlsLibrary.dll",
                                                                "TPLDataFlowDebuggerVisualizer.dll",
                                                                "WPFExtensions.dll",
                                                                "WPFToolkit.dll"

                                                            };

        /// <summary>
        /// Default constructor of the package.
        /// Inside this method you can place any initialization code that does not require 
        /// any Visual Studio service because at this point the package object is created but 
        /// not sited yet inside Visual Studio environment. The place to do all the other 
        /// initialization is the Initialize method.
        /// </summary>
        public VsPackage()
        {
        
            Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering constructor for: {0}", this.ToString()));
        }



        /////////////////////////////////////////////////////////////////////////////
        // Overridden Package Implementation
        #region Package Members

        /// <summary>
        /// Initialization of the package; this method is called right after the package is sited, so this is the place
        /// where you can put all the initialization code that rely on services provided by VisualStudio.
        /// </summary>
        protected override void Initialize()
        {
             Trace.WriteLine(string.Format(CultureInfo.CurrentCulture, "Entering Initialize() of: {0}", this.ToString()));
            base.Initialize();

            // Add our command handlers for menu (commands must exist in the .vsct file)
            OleMenuCommandService mcs = GetService(typeof(IMenuCommandService)) as OleMenuCommandService;
            if (null != mcs)
            {
                // Create the command for the menu item.
                CommandID menuCommandID = new CommandID(GuidList.guidDebugVisulaizerVSPackageCmdSet, (int)PkgCmdIDList.dataflow);
                MenuCommand menuItem = new MenuCommand(MenuItemCallback, menuCommandID);
                mcs.AddCommand(menuItem);
            }
        }
        #endregion

        /// <summary>
        /// This function is the callback used to execute a command when the a menu item is clicked.
        /// See the Initialize method to see how the menu item is associated to this function using
        /// the OleMenuCommandService service and the MenuCommand class.
        /// </summary>
        private void MenuItemCallback(object sender, EventArgs e)
        {
            Debugger.Break();
            var extentionPath = Path.Combine(this.UserLocalDataPath, @"Extensions\oshvartz\DebugVisulaizerVSPackage\1.0.0.0");

            var command = Path.Combine(extentionPath, "InstallVisualizer.exe");
            var visualizer = _visulaizerFiles.Select(file => Path.Combine(extentionPath, file)).Aggregate((file1, file2) => file1 + " " + file2);

            
            Install(extentionPath, command, visualizer);


        }

        private static void Install(string extentionPath, string command, string visualizer)
        {
            ProcessStartInfo proc = new ProcessStartInfo();
            proc.UseShellExecute = true;
            proc.WorkingDirectory = extentionPath;
            proc.FileName = command;
            proc.Verb = "runas";
            proc.Arguments = visualizer;

            Process.Start(proc);
        }
    }
}
